Hathor (𓉡 Ḥwt-Ḥr) is the ancient Egyptian goddess of love, beauty, music, motherhood, and joy. Her name means "house of Horus" — she was the mother (and sometimes consort) of Horus, the sky god.
Hathor is rare as a given name in the modern English-speaking world, but rising among parents drawn to ancient Egyptian mythology.
Hathor does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
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In Pythagorean numerology the letters of Hathor reduce to 7, The Seeker. This is a traditional interpretive system, not a factual claim about the name.